Fluid depletion in shear bands.
- Mani R Computational Physics, IfB, ETH-Hönggerberg, Wolfgang-Pauli-Strasse 27, 8093 Zürich, Switzerland. manir@ethz.ch
- Kadau D
- Or D
- Herrmann HJ
- 2013-02-02
Published in:
- Physical review letters. - 2012
English
How does pore liquid reconfigure within shear bands in wet granular media? Conventional wisdom predicts that liquid is drawn into dilating granular media. We, however, find a depletion of liquid in shear bands despite increased porosity due to dilatancy. This apparent paradox is resolved by a microscale model for liquid transport at low liquid contents induced by rupture and reconfiguration of individual liquid bridges. Measured liquid content profiles show macroscopic depletion bands similar to results of numerical simulations. We derive a modified diffusion description for rupture-induced liquid migration.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1103/PhysRevLett.109.248001
- PMID 23368383
- Persistent URL
- https://sonar.ch/global/documents/265646
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